/**
 * 无限睡眠(阻塞程序执行)
 */
public class Main {
    public static void main(String[] args) throws InterruptedException {
        long ONR_HOUR = 60 * 60 * 1000;
        Thread.sleep(ONR_HOUR);
        System.out.println("哈哈哈哈哈哈, 睡完了, 我醒喽!!!!!!");
    }
}